import axios from 'axios'
import { MessageBox, Message } from 'element-ui'
import store from '../store'
import router from '../router'

// create an axios instance
const service = axios.create({
  baseURL: window.global_config.BASE_URL, // url = base url + request url
  // withCredentials: true, // send cookies when cross-domain requests
  timeout: 30000 // request timeout
})

// request interceptor
service.interceptors.request.use(
  config => {
    // do something before request is sent
    if (localStorage.getItem(process.env.VUE_APP_TOKEN)) {
    //   // let each request carry token
    //   // ['X-Token'] is a custom headers key
    //   // please modify it according to the actual situation
      config.headers.token = localStorage.getItem(process.env.VUE_APP_TOKEN)
    }
    return config
  },
  error => {
    // do something with request error
    console.log(error) // for debug
    return Promise.reject(error)
  }
)

// response interceptor
service.interceptors.response.use(
  /**
   * If you want to get http information such as headers or status
   * Please return  response => response
   */

  /**
   * Determine the request status by custom code
   * Here is just an example
   * You can also judge the status by HTTP Status Code
   */
  response => {
    const res = response.data
    // if the custom code is not 20000, it is judged as an error.
    if (res.code !== 1) {
      // 50008: Illegal token; 50012: Other clients logged in; 50014: Token expired;
      if (res.code === 10001) {
        // to re-login
        MessageBox.confirm('登录已失效，是否重新登录', '登出 ', {
          confirmButtonText: '重新登录',
          cancelButtonText: '留在当前页',
          type: 'warning'
        }).then(() => {
          localStorage.removeItem(process.env.VUE_APP_TOKEN)
          store.state.token = ''
          router.push({
            path: '/login'
          })
        })
      }
      return Promise.reject(new Error(res.msg || 'Error'))
    } else {
      return res
    }
  },
  error => {
    console.log('err' + error) // for debug
    Message({
      message: error.message,
      type: 'error',
      duration: 5 * 1000
    })
    return Promise.reject(error)
  }
)

export default service
